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The Alpine SPS-609 is a set high-powered, 6” x 9” low frequency 2-way coaxial car speakers. Each speaker includes a Poly-Mica woofer with a 1” swiveling dome tweeter. The top speakers in the Alpine SPS lineup, these units take in a bit over 250W of power, while outputting along a fairly wide 65Hz-22kHz frequency range. Included is a shallow-mount design for easy installation, as well as built-in compatibility with OEM factory amplifiers and Alpine head-units. At their core are Strontium magnets, each engineered for low-distortion, but high clarity.